Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.
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1. A single layer wiring electrode array for use in a touch sensing device, comprising: a conductive layer having capacitive regions and wiring regions located on one plane and arranged in an alternating manner; one capacitor cell in each of the capacitive regions; and one wire in each of the wiring regions, wherein: each of the capacitor cells includes a driving electrode and a sensing electrode disposed opposite to the driving electrode; each of the driving and sensing electrodes has at least two sides that are zigzag-shaped or wave-shaped; and the wires are curved, wherein one of the wiring regions includes second wires connected to multiple driving electrodes in parallel and a first wire that connects multiple sensing electrodes in series.
A single-layer touch sensor array for a touch device includes a single conductive layer with alternating capacitor regions and wiring regions. Each capacitor region has a capacitor cell with a driving electrode and a sensing electrode opposite each other. Both driving and sensing electrodes have at least two zigzag or wave-shaped sides. Each wiring region has a curved wire. Within a wiring region, second wires connect to multiple driving electrodes in parallel, while a first wire connects multiple sensing electrodes in series.
2. The single layer wiring electrode array of claim 1 , wherein the wires are zigzag-shaped or wave-shaped.
The single-layer touch sensor array described previously, where the wires in the wiring regions are specifically zigzag-shaped or wave-shaped, providing flexibility and allowing for denser wiring layouts within the single layer.
3. The single layer wiring electrode array of claim 1 , wherein the driving electrode includes a hole.
The single-layer touch sensor array described previously, where the driving electrode of the capacitor cell includes a hole, potentially for reducing capacitance or improving manufacturing processes.
4. The single layer wiring electrode array of claim 1 , wherein the sensing electrode includes a hole.
The single-layer touch sensor array described previously, where the sensing electrode of the capacitor cell includes a hole, potentially for reducing capacitance or improving manufacturing processes.
5. The single layer wiring electrode array of claim 1 , wherein: a first side of the driving electrode is zigzag-shaped or wave-shaped; a second side of the sensing electrode is zigzag-shaped or wave-shaped; and the first and second sides are parallel to each other.
The single-layer touch sensor array described previously, where a first side of the driving electrode is zigzag or wave-shaped, and a second side of the sensing electrode is zigzag or wave-shaped, with these sides being parallel to each other. This parallel arrangement of the zigzag or wave-shaped sides of the driving and sensing electrodes enhances capacitive coupling and touch sensitivity.
6. The single layer wiring electrode array of claim 1 , wherein: one of the capacitor cells includes a first plurality of driving electrodes and a second plurality of sensing electrodes; the first plurality fits into grooves formed by the second plurality; and the second plurality fits into grooves formed by the first plurality.
The single-layer touch sensor array described previously, where each capacitor cell contains multiple driving electrodes and multiple sensing electrodes arranged such that the driving electrodes fit into grooves formed by the sensing electrodes, and the sensing electrodes fit into grooves formed by the driving electrodes. This interdigitated arrangement maximizes the capacitive coupling area.
7. The single layer wiring electrode array of claim 1 , wherein the one of the wiring regions further includes a separation wire located between the first wire and the second wires, and the separation wire is not connected to any electrode for driving or sensing.
The single-layer touch sensor array described previously, where each wiring region also includes a separation wire located between the first wire (connected to sensing electrodes) and the second wires (connected to driving electrodes). This separation wire is not connected to any electrode, either driving or sensing, and acts as a shield to reduce unwanted capacitive coupling or interference.
8. The single layer wiring electrode array of claim 7 , wherein: the separation wire is wave-shaped or zigzag-shaped; and the separation wire is parallel to an edge of the first wire and an edge of one of the second wires.
The single-layer touch sensor array, which includes a separation wire located between the first wire and the second wire as described previously, where the separation wire itself is wave-shaped or zigzag-shaped and is parallel to an edge of the first wire (sensing electrode connection) and an edge of one of the second wires (driving electrode connection). This shape and positioning further enhance its shielding effectiveness.
9. The single layer wiring electrode array of claim 1 , wherein the conductive layer is indium-tin-oxide (ITO).
The single-layer touch sensor array described previously, where the conductive layer, which forms the capacitive and wiring regions, is made of indium-tin-oxide (ITO), a transparent conductive material commonly used in touch screens.
10. A capacitive touch screen, comprising: a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions that are arranged in an alternating manner, a plurality of capacitors in the capacitive regions, and a plurality of wires in the wiring regions, wherein the wires are connected to the capacitors and are zigzag-shaped or wave-shaped, wherein each of the capacitors includes a driving electrode and a sensing electrode, a first side of the driving electrode is zigzag-shaped or wave-shaped, a second side of the sensing electrode is zigzag-shaped or wave-shaped, and the first and second sides are in parallel; and control ports for connecting to at least one integrated circuit (IC), wherein the wires are connected to the control ports respectively, wherein one of the wiring regions includes a first wire connected to a sensing electrode of the capacitors and a second wire connected to a driving electrode of the capacitors.
A capacitive touch screen includes a substrate and a single-layer electrode array on top. This array has alternating capacitive and wiring regions. The capacitive regions contain capacitors, and the wiring regions contain zigzag or wave-shaped wires connected to the capacitors. Each capacitor has a driving electrode and a sensing electrode with parallel zigzag or wave-shaped sides. Control ports connect the wires to integrated circuits (ICs). The wiring regions include a first wire connected to the sensing electrode and a second wire connected to the driving electrode.
11. The capacitive touch screen of claim 10 , further comprising a ground wire connected to one of the control ports for connecting to the IC.
The capacitive touch screen as described previously, which includes a substrate, a single-layer electrode array, capacitors with driving and sensing electrodes, zigzag/wave-shaped wires, and control ports connected to ICs, further includes a ground wire connected to one of the control ports. This ground wire provides a reference voltage and reduces noise, thus improving touch sensing accuracy.
12. The capacitive touch screen of claim 11 , wherein the ground wire is wave-shaped or zigzag-shaped.
The capacitive touch screen, including a ground wire connected to a control port as described previously, where the ground wire itself is wave-shaped or zigzag-shaped, mirroring the design of other wires in the wiring regions to maintain consistent electrical characteristics and optimize space utilization.
13. The capacitive touch screen of claim 11 , wherein the ground wire is disposed between the first wire and the second wire.
The capacitive touch screen, including a ground wire, as previously described, where the ground wire is disposed between the first wire (connected to the sensing electrode) and the second wire (connected to the driving electrode). This placement further enhances the shielding effect of the ground wire, reducing capacitive coupling between the driving and sensing lines.
14. The capacitive touch screen of claim 10 , wherein the substrate is one of: glass, toughened glass, tempered glass, and polyethylene terephthalate (PET).
The capacitive touch screen as described previously, where the substrate, which supports the single-layer electrode array, is made of glass, toughened glass, tempered glass, or polyethylene terephthalate (PET), providing mechanical support and optical clarity.
15. The capacitive touch screen of claim 10 , wherein at least two sides of each of the driving and sensing electrodes are zigzag-shaped.
The capacitive touch screen as described previously, where at least two sides of both the driving and sensing electrodes in each capacitor are zigzag-shaped. This increases the area of capacitive coupling, leading to a stronger signal and improved touch sensitivity.
16. The capacitive touch screen of claim 15 , wherein: the driving electrode includes a first hole as defined by inner edges of the driving electrode; the sensing electrode includes a second hole as defined by inner edges of the sensing electrode; the inner edges of the driving electrode have the same shape as the outer edges of the driving electrode; and the inner edges of the sensing electrode have the same shape as the outer edges of the sensing electrode.
The capacitive touch screen with zigzag-shaped driving and sensing electrodes as previously described, further characterized in that the driving electrode includes a first hole defined by its inner edges, and the sensing electrode includes a second hole defined by its inner edges. The inner edges of the driving electrode have the same shape as its outer edges, and the inner edges of the sensing electrode have the same shape as its outer edges. This design likely contributes to uniform electric field distribution and consistent capacitance.
17. An event sensing device, comprising: a substrate; and a conductive layer disposed over the substrate, wherein the conductive layer includes: a first capacitive region having first capacitors; a second capacitive region having second capacitors, wherein each of the first and second capacitors comprises a driving electrode coupled to a sensing electrode, and a zigzag-shaped or wave-shaped side of the driving electrode is opposite a zigzag-shaped or wave-shaped side of the sensing electrode; a wiring region between the first and second capacitive regions, the wiring region having first, second, and third wires, wherein the first wire is connected to a driving electrode of the second capacitors, the second wire is connected to another driving electrode of the second capacitors, the third wire is connected to a sensing electrode of the first capacitors, and the first, second, and third wires are zigzag-shaped; and first, second, and third control ports for connecting to at least one integrated circuit (IC), wherein the first, second, and third wires are connected to the first, second, and third control ports respectively.
An event sensing device includes a substrate and a conductive layer. This layer has a first capacitive region with first capacitors, and a second capacitive region with second capacitors. Each capacitor has a driving electrode coupled to a sensing electrode, with a zigzag or wave-shaped side of the driving electrode opposite a zigzag or wave-shaped side of the sensing electrode. A wiring region between the capacitive regions has first, second, and third zigzag-shaped wires. The first wire connects to a driving electrode of the second capacitors, the second wire connects to another driving electrode of the second capacitors, and the third wire connects to a sensing electrode of the first capacitors. First, second, and third control ports connect the wires to at least one IC.
18. The event sensing device of claim 17 , wherein the first, second, and third ports are located at one side of the conductive layer.
The event sensing device described previously, which includes a substrate, capacitive regions, zigzag-shaped wires, and control ports connected to ICs, where the first, second, and third control ports are all located on one side of the conductive layer, simplifying connection and reducing the complexity of the device assembly.
19. The event sensing device of claim 17 , wherein the first and second ports are located at opposite sides of the conductive layer.
The event sensing device described previously, including a substrate, capacitive regions, zigzag-shaped wires, and control ports connected to ICs, where the first and second control ports are located on opposite sides of the conductive layer, potentially optimizing wiring layout or facilitating connection to different parts of the system.
20. The event sensing device of claim 17 , wherein the conductive layer further includes a fourth wire that is zigzag-shaped and is located between the third wire and the first and second wires, wherein the fourth wire is not connected to any electrode for driving or sensing.
The event sensing device, including a substrate, capacitive regions, zigzag-shaped wires, and control ports, as described previously, further including a fourth zigzag-shaped wire located between the third wire and the first and second wires. This fourth wire is not connected to any electrode for driving or sensing and serves as a shield, reducing interference and cross-talk between the signal lines.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
July 17, 2013
June 13, 2017
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